Table 1 Assessment instruments proposed for the current study

Opiate Treatment Index (OTI, quantity/frequency) [14]

Point Prevalence and Continuous Abstinence

Readiness to Quit Smoking [15]

Fagerstrom Test for Nicotine Dependence [16]

Expired Carbon Monoxide

Minnesota Nicotine Withdrawal Scale (MNWS-R)[17]

Readiness to change physical activity [18]

Physical activity screen (past week)

Average minutes walking per week

International Physical Activity Questionnaire [19]

24-hour recall of eating patterns

OTI- alcohol and cannabis

Beck Depression Inventory - II [20]

Brief Symptom Inventory [21]

Body mass index (height, weight)

Waist-hip ratio (cms)

Auscultatory Blood pressure

Fingerprick Blood Tests (glucose, cholesterol, lipids)

Treatment and Service Utilisation [22]

Brief Psychiatric Rating Scale [23]

Mini International Neuropsychiatric Interview [22]

Global Assessment of Functioning [24]

Medical Outcome Survey SF-36 [25]

Quality of Life Scale [26]

Impact of Weight on Quality of Life Questionnaire [27]